Gah, people, stop saying "bug, bug, bug" the game is FULLY PLAYABLE and FULLY SOLVABLE, it does NOT crash or send you to the wrong screen, and things like the magnet not disappearing in the side view are NOT BUGS! They're missing features that might have been implemented if the dev had remembered or felt like doing a little more in MS Paint, but the game is fine without them. Personally I think they add to the kind of sloppy, silly vibe which is very fitting for a game titled "MS Paint Escapers 0."
Edit: While I stand by what I said for things like side views that don't affect gameplay (i.e. the magnet), the sundial's hand and shadow being invisible in the detail window could be considered a bug. So I'm sorry for jumping to conclusions. If you restart the game and look at the sundial's face before solving the lamp puzzle, it seems to fix it. If you don't want to bother with that, the below message should allow you to bypass it (and also skip most of the game):
SPOILER: ...thgindim eb thgim ti ,laidnus eht ot gnidroccA